Schneider 140XBP00400, that is, a 4slot backplane rack for Modicon Quantum PLC system, is used for installing and fixing CPU, power supply, I/O and communication modules. It is widely deployed in water treatment, metallurgy, petrochemical and manufacturing automation sites. It adopts reliable industrial backplane circuit technology to realize power distribution and internal bus data transmission between all modules mounted on the rack.

All kinds of PLC modules can be plugged into the slots of this backplane. It distributes working power for each module and transmits highspeed bus signals between different hardware units. During system operation, it provides stable physical connection and data channel for the whole PLC system. Good contact performance can ensure normal data interaction between modules. Damaged backplane will lead to communication failure of the whole rack.

From the perspective of application objects, this backplane rack applies to water treatment, petrochemical and metallurgical industries. For water treatment industry, it is used as installation base for PLC control cabinets. For petrochemical industry, it serves for the assembly of process control PLC racks. For metallurgical industry, it is used for automation control racks on production lines. It is suitable for industrial equipment maintenance, spare parts replacement and system technical renovation.